Apple is recalling the power adapters that were shipped with the iPhone 3G.

“Apple has determined that under certain conditions the new ultracompact Apple USB power adapter’s metal prongs can break off and remain in a power outlet, creating a risk of electric shock. We have received reports of detached blades involving a very small percentage of the adapters sold, but no injuries have been reported.”

You can order your replacement via the web, https://supportform.apple.com/200809/, or through an Apple Store after October 10, 2008.